250 prompts matching "The tests for protein, starch and reducing sugar"
Exam practice: Single, double and triple covalent bonds
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Exam practice: Identifying the species oxidised in a reaction
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Calculation practice: Working out the change in oxidation number
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Real-life Nigeria: Oxidation in the rusting of Nigerian roofing sheets
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Chemistry at work: Redox reactions in batteries and cells
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Exam practice: The extraction of iron in the blast furnace
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Calculation practice: Calculating the mass of metal obtainable from an ore
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Explain back: The allotropes shown by some non-metals
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Exam practice: The halogens as a family of non-metals
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Real-life Nigeria: The non-metals essential to Nigerian agriculture
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Calculation practice: Calculating the volume of a gas from a given mass
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Explain back: The preferential discharge of ions
I have just studied the preferential discharge of ions in my SS2 Chemistry class. Let me e
Exam practice: Electrolysis and electrochemistry reviewed
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Explain back: Calculating the average titre correctly
I have just studied calculating the average titre correctly in my SS2 Chemistry class. Let
Exam practice: Finding the concentration of an unknown alkali
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Calculation practice: Calculating the purity of a sample from titration data
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Explain back: How a catalyst lowers the activation energy
I have just studied how a catalyst lowers the activation energy in my SS2 Chemistry class.
Real-life Nigeria: The catalysts used in Nigerian industry
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Exam practice: The effect of temperature on the position of equilibrium
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Real-life Nigeria: Equilibrium in the Haber process
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